Example Question #81 : Musculoskeletal Physiology

There are five classifications of bone in the body: long, short, flat, irregular, and sesamoid. The sternum, as well as many of the bones in the skull, are examples of flat bones.

Long bones have a greater length and diameter, while short bones have similar length and diameter measures. The femur is a long bone, while the carpals are short bones. Short bones generally appear square. Irregular bones have unique shapes, such as the sphenoid and ethmoid. Sesamoid bones are generally round and are embedded in tendon structures. The patella is a sesamoid bone.

Example Question #1 : Help With Types Of Bone

Which type of bones form the outer region the skull?

Possible Answers:

Irregular bones

Sesamoid bones

Flat bones

Short bones

Long bones

Correct answer:

Flat bones

Explanation:

The five types of bones are flat bones, short bones, long bones, irregular bones, and sesamoid bones. Flat bones are found in the skull, and contain suture joints that fuse together as a developing child ages. The frontal, temporal, parietal, and occipital bones are all flat bones. Within the interior skull structure, the ethmoid and sphenoid bones are considered irregular bones.

Example Question #1 : Help With Types Of Bone

A vertebra would be classified as which type of bone?

Possible Answers:

Flat bone

Irregular bone

Short bone

Sesamoid bone

Long bone

Correct answer:

Irregular bone

Explanation:

The five types of bones are long bone, short bone, irregular bone, flat bone, and sesamoid bone. Irregular bones are categorized by a shape that does not fit into the other categories. Typical vertebrae do not fit into any geometric shape.

Example Question #81 : Musculoskeletal Physiology

Ribs are considered flat bones. Flat bones are generally thin and flat, and can frequently be wide and/or curved. The ribs, sternum, and scapula are considered flat bones.

Long bones are classified as bones with a length that is substantially greater than their width, such as the femur, radius, and phalanges. Short bones, in contrast, have similar length and width measurements, such as the carpals and tarsals. Sesamoid bones are embedded in tendons, such as the patella. Intrasutural bones (or Wormian bones) are found between the primary bones of the skull in abnormal cases of suture formation during development.

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